Sunroom Contractor in South Gate - Patios Turned Into Rooms You'll Use
Sunhaven Lynwood Sunrooms & Patios is a sunroom contractor based in Lynwood that builds sunrooms, patio enclosures and screen rooms in South Gate, CA. We help you pick the room that fits how you live, and our own crew builds it.

- Service area
- South Gate, CA
- Call
- (424) 296-8574
Homes and backyards across South Gate
South Gate sits right next to Lynwood, where we're based, so it's close to home for our crew. Most of what I see here are single-family houses on modest lots, with a concrete patio by the back door or a wood deck that's been out back for years, and a family that wants to use that space as a real room. The yards look a lot like the ones we work on in Compton and Downey, and we do the same work there.
What I look at first is what's already there, because a patio slab poured for a table and chairs wasn't always poured to hold walls and a roof, and an older deck may need new posts or footings first. The kind of room you pick and how much work the base needs move the price most, while the room's size and value decide how much city review it gets before we start. On a smaller lot, the design usually comes down to where the room ties into your roofline and how much yard you want to keep.
Our services in South Gate, CA
Plenty of South Gate backyards already have a concrete patio by the back door, and that's often the easiest place to add a room. We check whether the slab can carry walls and a roof before we plan on it, and add footings where it can't.
When a family here is short on space inside, a four season sunroom gives them a den, playroom or office they can use any month of the year. We build it with insulated walls, glass and roof and tie it into the house so it feels like part of it.
If you mostly want a bright place to sit out back without paying for a fully insulated room, a three season room is often the better fit. I'll walk you through what you give up and what you save, so the choice is yours.
Some houses here have a raised wood deck that's seen years of use, and putting a room on it means checking the posts, beams and footings first. We repair or rebuild what's needed so the deck can carry the weight of a room.
On a smaller lot, a patio cover gives you shade and an outdoor sitting area without closing in the yard. We set the posts and tie the cover into the house, and we can plan it so it's easier to enclose later if you change your mind.
Most people who call us from South Gate know they want more room but aren't sure which kind. We start with how you'll use the space, then work out a room that fits your yard, your roofline and your budget.
Every service we offer
Sunroom additions
Four season sunrooms
Three season sunrooms
Patio enclosures
Custom sunrooms
Sunroom construction
Sunroom remodeling
Screen room installation
Patio-to-sunroom conversion
Deck-to-sunroom conversion
All season rooms
Enclosed patio rooms
Solarium installation
Patio cover installation
Sunroom design
Vinyl sunrooms
How it works when you call us in South Gate
Call or send the form
You call (424) 296-8574 or fill out the form, and we set a time for me to come see your space. It helps if you're home for the visit so we can talk through how you'd use the room.
We measure and listen
I come out myself to look at your patio, deck or slab, take measurements and ask how you want to use the room. Then we write up an estimate that spells out what's in it, so you know what you're paying for before you decide.
We handle drawings and permits
If your room needs a permit, we prepare the drawings and handle the application with the city, then line up the inspections. We keep you posted at each step, so you're not chasing the city yourself.
We build and walk through
Our own crew, led by a lead installer, builds the room while I check in at each stage. At the end we walk through it together, and I show you how to look after it.
South Gate sunroom questions answered
Does a sunroom need a permit in South Gate?
Plan on one, because the city says building permits are typically required for any home improvement, alteration or construction project, and adding a room to your house is that kind of work. For a ruling on a specific small job, South Gate's Building and Safety Division is the office that issues permits. When your room needs one, the paperwork is part of what we do.
Does my sunroom contractor need a South Gate business license?
Yes, the city requires a business license of every business working inside city limits, and that includes contractors whose offices are in another city. The city also issues building permits only to the property owner or to a state licensed contractor who holds a South Gate business license, so it's a fair thing to ask any contractor about before you sign.
When is a state contractor license required for a sunroom in California?
Any sunroom that needs a building permit needs a licensed contractor, because the state licensing board requires a license whenever a project needs a permit, uses any extra workers, or totals $1,000 or more in labor and materials. The small-job exception rose from $500 to $1,000, and it only covers work that needs no permit where the person hires no one, so it won't cover a permitted room. We're licensed and insured.
How do I pull a permit for my own sunroom in South Gate?
You can apply as an owner-builder, which means the permit is issued to you as the owner, as long as your property has two units or less. You'll need workers' compensation insurance if anyone outside your household helps, and if a company or an LLC owns the property, the city requires a licensed contractor instead.
What causes extra city review on a sunroom plan in South Gate?
Size, value and work on the house's structure do. In the city's residential plan check, new construction valued over $50,000 or larger than 800 square feet also needs Public Works review and approval, and the city bases that value on the scope of work. If the job disturbs a bearing wall or the roof structure, or tears down a structure, you'll also need approval from the air district, so we'll tell you at the estimate whether your room is likely to hit either one.
How much does it cost to add a sunroom in South Gate?
The cost comes down mostly to the kind of room you choose and what it sits on. A screen room or three season room costs less than a fully insulated four season room, and a slab or deck that needs new footings or repairs adds to the price, as do your glass, roof and electrical choices. The city's permit also carries a debris recycling deposit that comes back to you if 65 percent or more of the construction and demolition debris is recycled or reused, with a partial refund below that, and your estimate spells out each piece so you can see what moves your number.
Get a free sunroom estimate for your South Gate home
We reply within one business day to set a time, and I come out to your South Gate house to measure and talk through how you'd use the room. The on-site estimate is free, and there's no pressure to book. Your satisfaction, guaranteed.
- Call
- (424) 296-8574
- Location
- Lynwood, CA 90262
- Hours
- Mon–Fri: 7 AM–9 PM, Sat–Sun: 6 AM–9 PM
Ask about your South Gate sunroom project
Tell us what you have out back, and we'll tell you what the city is likely to want to see before you spend anything on plans.




